Method for machining metallic member using lathing and scraping

ABSTRACT

A method for machining a metallic member to provide a finished appearance uses a lathe and a scraping process. A metallic member comprising a top portion and a peripheral sidewall is provided, the metallic member is positioned on the worktable. The worktable is rotated with the metallic member, the lathe tool moved backwards and forwards to machine the top portion of the rotary metallic member circumferentially. The lathe tool is moved by the moving device along a predetermined path relative to the worktable to machine curved surfaces of the top portion of the metallic member. The scraping cutter is moved to contact the peripheral sidewall of the metallic member. The scraping cutter is moved along a predetermined path, and the scraping cutter is fed the metallic member to achieve the required shape and finish.

CROSS-REFERENCE TO RELATED APPLICATIONS

This application claims all benefits accruing under 35 U.S.C. §119 fromChina Patent Application No. 201210553821.9, filed on Dec. 19, 2012, inthe China Intellectual Property Office, the disclosure of which isincorporated herein by reference. The application is also related toco-pending applications entitled, “METHOD FOR MACHINING METALLIC MEMBERUSING LATHING AND MILLING” (Atty. Docket No. US49872); “METHOD FORMACHINING METALLIC MEMBER USING LATHING AND MILLING” (Atty. Docket No.US50023); “METHOD FOR MACHINING METALLIC MEMBER USING LATHING ANDSCRAPING” (Atty. Docket No. US50025); “METHOD FOR MACHINING METALLICMEMBER USING LATHING AND SCRAPING” (Atty. Docket No. US50026); “MACHINETOOL WITH LATHE TOOL AND MILLING CUTTER” (Atty. Docket No. US50027);“MACHINE TOOL WITH LATHE TOOL AND SCRAPING CUTTER” (Atty. Docket No.US50028); “MACHINE CONTROL SYSTEM EMPLOYING LATHE TOOL AND MILLINGCUTTER”(Atty. Docket No. US50030), “MACHINE CONTROL SYSTEM EMPLOYINGLATHE TOOL AND SCRAPING CUTTER”(Atty. Docket No. US50031), “MILLINGMETHOD FOR MACHINING METALLIC MEMBER”(Atty. Docket No. US50033).

BACKGROUND

1. Technical Field

The present disclosure generally relates to methods for machining ametallic member, and particularly, to a method for machining memberusing lathing and scraping.

2. Description of the Related Art

An electronic device such as a tabletop computer or a mobile phone mayhave a housing made of metal. The metallic housing includes a topportion and a peripheral sidewall extending from a peripheral edge ofthe top portion. The top portion has a greater surface area than that ofthe peripheral sidewall and has a non-circular flat surface ornon-circular curved surface. The peripheral sidewall has four sidesurfaces arranged in order and adjacent two side surfaces connected bycorners. In related manufacturing fields, if a milling process is usedto machine the metallic housing, some tracks may occur on the topportion that has been milled because of intermittent contact andinterrupted milling by the milling cutter. Then a second milling processneeds to be applied for a better appearance. Thus the efficiency of themilling process is reduced. If a lathe process is used to machine themetallic member, it is difficult to machine a surface which is notcircular. The lathe is not suitable to machine the peripheral sidewallsbecause of the four corners of the peripheral sidewall. Thus a number ofadditional machining processes are needed to machine the metallichousing.

Therefore, there is room for improvement within the art.

BRIEF DESCRIPTION OF THE DRAWING

The components in the drawings are not necessarily drawn to scale, theemphasis instead placed upon clearly illustrating the principles of thepresent disclosure. Moreover, in the drawings, like reference numeralsdesignate corresponding parts throughout the several views.

FIG. 1 is an isometric view of a first embodiment of a machine equippedwith a lathe feeding mechanism and a scraping feeding mechanism, and aworktable.

FIG. 2 is an exploded, isometric view of the machine of FIG. 1.

FIG. 3 is a partial, exploded, isometric view of the lathe feedingmechanism and the scraping feeding mechanism of FIG. 2.

FIG. 4 is an exploded, isometric view of the lathe feeding mechanism ofFIG. 3.

FIG. 5 is an isometric view of a metallic member to be machined.

FIG. 6 is a sectional view of the metallic member of FIG. 5, taken alongline VI-VI of FIG. 5.

FIG. 7 is a flow chart of a first embodiment of the method for machiningthe metallic member.

FIG. 8 is a schematic view of a second embodiment of the machine with apart thereof removed.

DETAILED DESCRIPTION

FIGS. 1 and 2 show a first embodiment of a machine 100 adapted for ascraping method for machining a metallic member 300 (see FIG. 5). Themachine 100 includes a machine support 10, a worktable 20, a movingdevice 30, a lathe feeding mechanism 40, a scraping feeding mechanism50, and a controller 60. The worktable 20 holds a workpiece in place andis supported by the machine support 10. The moving device 30 is movablypositioned on the machine support 10 above the worktable 20. The lathefeeding mechanism 40 and the scraping feeding mechanism 50 are arrangedside by side and slidably mounted on the moving device 30. Thecontroller 60 is electrically connected to the worktable 20, the movingdevice 30, the lathe feeding mechanism 40, and the scraping feedingmechanism 50 for controlling the machine 100. Under the control of thecontroller 60, the moving device 30 can be driven to move with the lathefeeding mechanism 40 and the scraping feeding mechanism 50, such thatthe lathe feeding mechanism 40 and the scraping feeding mechanism 50 canbe driven three-dimensionally along Cartesian coordinates, that is,along the X, the Y, and the Z axes.

The machine support 10 includes a base 11 and a pair of support bodies13 positioned on the base 11. The pair of support bodies 13 is parallelto each other and arranged apart. Each support body 13 includes a firstsliding rail 131 on a surface away from the base 11. In the illustratedembodiment, the first sliding rail 131 extends substantially parallel tothe X-axis (a first direction).

The worktable 20 is rotatably positioned on the base 11 between the twosupport bodies 13. The worktable 20 includes a pair of mounting bases21, a first rotating member 23, a rotating shaft 25, and a secondrotating member 27. The pair of mounting bases 21 is located in themiddle portion of the base 11, in parallel. The pair of mounting bases21 is located between the two support bodies 13. The first rotatingmember 23 is mounted on one mounting base 21. The rotating shaft 25interconnects the first rotating member 23 and the other one mountingbase 21. The first rotating member 23 is capable of rotating therotating shaft 25 around an α axis. The α axis is parallel to the Y-axisbut is not co-linear (a second direction). The second rotating member 27is positioned on a middle portion of the rotating shaft 25, and capableof rotating the metallic member 300 placed thereupon around a β axis.The β axis is parallel to the Z-axis (a third direction) but is notco-linear. The first rotating member 23 and the second rotating member27 are electrically connected to the controller 60. In the illustratedembodiment, the first rotating member 23 and the second rotating member27 are direct drive motors.

The moving device 30 is slidably mounted on the pair of support bodies13 and located above the worktable 20. The moving device 30 includes across beam 31, a pair of sliding bases 33, a pair of first drivingmechanisms 35, and a second driving mechanism 37. The extendingdirection of the cross beam 31 is substantially parallel to the Y-axis.Opposite ends of the cross beam 31 are slidably positioned on thesupport bodies 13. The cross beam 31 includes a pair of second slidingrails 311 positioned on a side surface and extending substantiallyparallel to the Y-axis. The pair of sliding bases 33 is installed on theopposite ends of the cross beam 31 to slidably connect with the firstsliding rail 131. The first driving mechanism 35 is mounted on a surfaceof the sliding base 33 away from the cross beam 31 and located adjacentto an end of the first sliding rail 131. The pair of first drivingmechanisms 35 is employed to drive the cross beam 31 to move along theX-axis direction.

The second driving mechanism 37 is mounted on the cross beam 31 to drivethe lathe feeding mechanism 40 and the scraping feeding mechanism 50 tomove along the second sliding rails 311. The first driving mechanisms 35and the second driving mechanism 37 are electrically connected to thecontroller 60. In the illustrated embodiment, the first drivingmechanisms 35 and the second driving mechanism 37 are high performancelinear motors. In other embodiments, the first driving mechanisms 35 andthe second driving mechanism 37 may be other drivers, such as hydrauliccylinders or rams. The number of the first driving mechanisms 35, andthe second driving mechanism 37 may be set according to the application.

FIGS. 3 to 4 show the lathe feeding mechanism 40 slidably positioned onthe cross beams 31. The lathe feeding mechanism 40 includes a slidingsaddle 41 (see FIG. 2), a mounting seat 43, a tool holder 45, a pair offeeding assemblies 47, and a lathe tool 49. The sliding saddle 41 isassembled to the cross beams 31 and movably engages with the pair ofsecond sliding rails 311. The sliding saddle 41 is driven by the seconddriving mechanism 37 to slide along the Y-axis direction together withthe lathe feeding mechanism 40 and the scraping feeding mechanism 50.The mounting seat 43 is fitted to the sliding saddle 41 away from thecross beam 31 and equipped with four guiding rails 413 extending alongthe Z-axis direction. The four guiding rails 413 are divided in two setsspaced from each other in pairs. The sliding saddle 41 further includesa mounting block 415 adjacent to the base 11. The mounting block 415 islocated between the two sets of guiding rails 413. The mounting seat 43is assembled to the sliding saddle 41 and spaced from the four guidingrails 413.

The mounting seat 43 includes a frame 431 and two mounting boards 433assembled to opposite sides of the frame 431. The frame 431 includes afirst side wall 4311 and a second side wall 4313. The first side wall4311 and the second side wall 4313 are positioned substantially parallelto each other and cooperatively define a receiving space 4315. The firstside wall 4311 is slidably connected with the sliding saddle 41. Twoseparate guiding portions 4317 protrude from an inner surface of thefirst side wall 4311 facing the second side wall 4313 and extendingsubstantially parallel to the Z-axis. A through groove 4318 is definedin the second side wall 4313 and extends along a direction substantiallyparallel to the Z-axis corresponding to the guiding portions 4317. Twosliding portions 4319 protrude from an outer surface of the second sidewall 4313 at two sides of the through groove 4318. In the illustratedembodiment, the sliding portions 4319 are sliding rails, and the frame431 is integrally formed. The two mounting boards 433 are installed onopen sides of the frame 431. Each mounting board 433 is connectedsubstantially perpendicularly to the first wall 4311 and the second sidewall 4313 to close the two open sides of the frame 431.

The tool holder 45 slidably connects with the mounting seat 43. The toolholder 45 is substantially “T” shaped, and includes a main body 451 anda sliding board 453 protruding substantially perpendicularly from themain body 451. The main body 451 is a bar of material tapering at bothends, and positioned outside of the mounting seat 43. Two distancedholding portions 4511 are positioned on a surface of the main body 451facing the sliding board 453. The two holding portions 4511 slidablyengage with the pair of sliding portions 4319 of the mounting seat 43.The sliding board 453 passes through the through groove 4318 and isslidably assembled to the two guiding portions 4317, dividing thereceiving space 4315 into two parts.

The pair of feeding assemblies 47 is mounted in the mounting seat 43,and includes two drivers 471 electrically connected to the controller60. The two drivers 471 are capable of driving the tool holder 45 toreciprocal motions at high speed along the direction of the Z-axis,relative to the guiding portions 4317 and the sliding portions 4319. Thetwo drivers 471 are received in the receiving space 4315 and positionedon two sides of the sliding board 453. In the illustrated embodiment,the drivers 471 are linear motors. Each driver 471 includes a forcer4711 and a stator 4713. Each forcer 4711 is fixed to a surface of eachof the mounting boards 433. The sliding board 453 is positioned betweenthe two forcers 4711. The two stators 4713 are positioned on theopposite surfaces of the sliding board 453. In other embodiments, thenumber of drivers 471 may be set according to application. For example,the two drivers 471 can replace a more powerful single driver, or threeor more drivers can be positioned to drive the tool holder 45 tomaximize the available power, and the assembly of the drivers issimpler.

The lathe tool 49 is fixedly assembled to the main body 451 of the toolholder 4511 adjacent to the base 11.

The scraping feeding mechanism 50 includes a linear driving assembly 53,a linking board 54, a fixing seat 55, a mounting base 56, a rotatabledriving member 57 and a scraping cutter 59. The linear driving assembly53 includes a driving member 531, a screw leading rod 533, and a nut535. The driving member 531 is mounted on the sliding saddle 43 abovethe cross beam 31. The screw leading rod 533 interconnects the drivingmember 531 and the mounting block 415. The nut 535 is sleeved on thescrew leading rod 533 and engages with the screw leading rod 533. Thelinking board 54 is slidably assembled to the two sets of guiding rails413 and fixed to the nut 535. The fixing seat 55 is mounted on an end ofthe linking board 54 adjacent to the base 11. The mounting base 56 ismounted on an end of the linking board 54 opposite to the fixing seat55. The rotatable driving member 57 extends through the fixing seat 55and the mounting base 56, and is fittingly supported by the fixing seat55. The scraping cutter 59 is mounted on an end of the rotatable drivingmember 57 adjacent to the base 11.

The driving member 531 is capable of rotating the screw leading rod 533and drives the linking board 54, the rotatable driving member 57, andthe scraping cutter 59 to slide along Z-axis direction. The rotatabledriving member 57 is capable of rotating the scraping cutter 59. Thescraping cutter 59 is driven by the cross beam 31 to move along theX-axis direction or the Y-axis direction, and driven by the lineardriving assembly 53 to move along Z-axis direction.

In assembly, the worktable 20 is positioned between the two supportbodies 13. The cross beam 31 is installed on the two support bodies 13via the pair of sliding bases 33. The pair of first driving mechanisms35, and the second driving mechanism 37 are mounted on the base 11 andthe cross beam 31 respectively. The lathe feeding mechanism 40 and thescraping feeding mechanism 50 are mounted to the cross beam 31 side byside. The worktable 20, the moving device 30, the lathe feedingmechanism 40, and the scraping feeding mechanism 50 are electricallyconnected to the controller 60.

FIGS. 5 and 6 show that the metallic member 300 to be machined is ahousing of a tablet computer or a mobile phone. The metallic member 300is substantially rectangular and hollow, and includes a top portion 301and a peripheral sidewall 303 extending from a peripheral edge of thetop portion 301. The top portion 301 has a curved surface with arelatively greater surface area than that of the peripheral sidewall303. In the embodiment, the peripheral sidewall 303 has four sidesurfaces 3031 arranged in order and every two of the adjacent sidesurfaces 3031 are connected by a corner 3033. The four side surfaces3031 are substantially flat surfaces, each corner 3033 interconnects twoadjacent side surfaces 3031. The peripheral sidewall 303 furtherincludes an end edge 305 away from the top portion 301.

FIG. 7 shows that a method for machining the metallic member includessteps as follows:

In step S101: a machine 100 is provided, the machine 100 includes aworktable 20, a lathe feeding mechanism 40, and a scraping feedingmechanism 50, the lathe feeding mechanism 40 includes a lathe tool 49,and the scraping feeding mechanism 50 includes a scraping cutter 59. Inthe embodiment, the machine 100 is provided as previously described.

In step S102: a metallic member 300 is placed and held on the worktable20 of the machine 100. The metallic member 300 includes a top portion301 and a peripheral sidewall 303 extending from a peripheral edge ofthe top portion 301.

In step S103: the second driving mechanism 37 drives the lathe feedingmechanism 40 to move along the Y-axis, thereby positioning the lathetool 49 at an original position above the metallic member 300.

In step S104: the second rotating member 27 rotates the metallic member300 around the β axis;

In step S105: the lathe feeding mechanism 40 drives the lathe tool 49 tomove along the Z-axis reciprocally with a high frequency to machine thetop portion 301 of the metallic member 300 according to the depth ofcutting required for each machining portion of the top portion 301,thereby machining the rotary metallic member 300 circumferentially.

In step S106: the moving device 30 moves the lathe feeding mechanism 40along the X-axis to enable the lathe tool 49 to radially machine the topportion 301 of the metallic member 300.

In step S107: the second rotating member 27 is held to stop rotating,the metallic member 300 stops rotating, and the lathe tool 49 stopsworking.

In step S108: the scraping feeding mechanism 50 drives the scrapingcutter 59 to contact the peripheral sidewall 303 of the metallic member300. In detail, first, the pair of first driving mechanisms 35 drivesthe cross beam 31 to slide along the X-axis, and the second drivingmechanism 37 drives the scraping feeding mechanism 50 to move along theY-axis, such that the scraping cutter 59 moves toward one first slidingrail 131 and arrives at a position above an end of one side surface 3031of the peripheral sidewall 303. Second, the linear driving assembly 53drives the scraping cutter 59 to slide along the two sets of guidingrails 413 until the scraping cutter 59 meets the peripheral sidewall 303of the metallic member 300.

In step S109: the worktable 20 rotates the metallic member 300 along theβ axis, the scraping feeding mechanism 50 moves along a predeterminedpath, and simultaneously with the metallic member 300 controls a feed ofthe scraping cutter 59 relative to the metallic member 300, therebymachining the peripheral sidewall 303. In detail, the pair of firstdriving mechanisms 35 drives the cross beam 31 to slide along the X-axisto enable the scraping cutter 59 to scrap the one side surface 3031 ofthe peripheral sidewall 303. When the scraping cutter 59 arrives at thecorner 3033, the second rotating member 27 rotates the metallic member300 around the β axis, the pair of first driving mechanisms 35 and thesecond driving mechanism 37 drive the scraping cutter 59 to adjust afeeding direction. The rotatable driving member 57 rotates the scrapingcutter 59 to scrap the corner 3033 along a tangent line of the outersurface of the corner 3033. The second rotating member 27 rotates themetallic member 300 to a preset angle, the moving device 30 drives thescraping feeding mechanism 50 to enable the scraping cutter 59 to scrapethe next side surface 3031 straight. Finally, in the same way thescraping cutter 59 finishes scraping the peripheral sidewall 303. Inother embodiments, the second rotating member 27 continuously rotatesthe metallic member 300 around the β axis, the scraping feedingmechanism 50 is moved by the moving device 30 to move along the metallicmember 300 in a straight line, and simultaneously control a movement ofthe scraping cutter 59.

The scraping feeding mechanism 50 may scrap the peripheral sidewall 30first, then the lathe feeding mechanism 40 drives the lathe tool 49 tomachine the top portion 301 of the metallic member 300.

In other embodiments, the sliding saddle 41, the mounting seat 43, thetool holder 45 may be omitted. Other driving assemblies assembled to thepair of second guiding rails 311 may be substituted for the pair offeeding assemblies 47. The driving assembly is capable of directlyreciprocating the lathe tool 49 along the Z direction at a high speed.

The scraping feeding mechanism 50 may not be assembled to the slidingsaddle 41, but assembled to a sliding plate (not shown) slidably mountedon the pair of second guiding rails 311, such that the lathe feedingmechanism 40 and the scraping feeding mechanism 50 may be controlledindependently.

The driving member 531, the screw leading rod 533, and the nut 535 maybe substituted by other driving assembly, such as a linear cylinder. Thelinear cylinder is assembled to the pair of second guiding rails 311.The rotatable driving member 57 is mounted on an output shaft of thelinear cylinder. Accordingly, the linking board 54 of the scrapingfeeding mechanism 50 may be omitted.

The worktable 20 may include the second rotating member 27 only, thesecond rotating member 27 is assembled to the base 11, and rotatesaround the β axis only. The worktable 20 may be a multi-axis worktable,and rotates the metallic member 300 along a plurality of axis to enablea multi-workstations machining

FIG. 8 shows that a second embodiment of machine 200 is employed in asecond embodiment of method for machining the metallic member 300. Themachine 200 is similar to the machine 100 in structure, save that asliding saddle 41 a is slidably assembled to a cross beam 31 a, and asecond rotating member 27 a is mounted on a rotating shaft 25 a. Themetallic member 300 is placed and held on the second rotating member 27a. The difference between the machines 100/200 is that, a mounting seat43 a of the machine 200 is slidably mounted on the sliding saddle 41 aand capable of sliding along the Z1-axis direction relative to thesliding saddle 41 a, and a lathe tool 49 is slidably mounted on themounting seat 43 a.

When the lathe feeding mechanism 40 machines the top portion 301 of themetallic member 300, the pair of first driving mechanisms 35 drive thecross beam 31 to slide along the X-axis. In addition, the second drivingmechanism 37 drives the lathe feeding mechanism 40 to move along theY-axis, such that the lathe tool 49 arrives at an original positionabove the worktable 20 for machining The original position is located ata middle of a side of the top portion 301. Then the mounting seat 43 adrives the lathe tool 49 to move downward along the Z1-axis to reach apreset position near the metallic member 300. Finally, the pair offeeding assemblies 47 drives the lathe tool 49 to reciprocate at a highspeed along the Z-axis according to the depth of cutting required foreach machined portion of the top portion 301, to machine the rotarymetallic member 300 circumferentially. Because the mounting seat 43 acan slide along the Z1-axis to place the lathe tool 49 at the presetposition, a reciprocating distance of movement of the lathe tool 49relative to the metallic member 300 can be reduced, thereby enhancing areaction response of the lathe tool 49.

Accordingly, in the second embodiment of the method for machining themetallic member 300, after driving the cross beam 31 to slide along theY-axis by the second driving mechanisms 37, a sub-step of moving themounting seat 43 a downward along the Z1-axis direction to reach apreset position is interposed.

The scraping feeding mechanism 50 is not assembled to the sliding saddle41, but is assembled to a sliding plate (not shown) slidably mounted onthe pair of second guiding rails 311, such that the lathe feedingmechanism 40 and the scraping feeding mechanism 50 may be controlledindependently.

The moving device 30 is capable of moving the lathe feeding mechanism 40along X/Y-axis directions, and the lathe feeding mechanism 40 is capableof reciprocating the lathe tool 49 along the Z-axis at a high speed, thescraping feeding mechanism 50 scrapes the peripheral sidewall 303,thereby accomplishing the one time machining of the metallic member 300.The worktable 20 is capable of rotating the metallic member 300 to matchthe feed of the lathe feeding mechanism 40. In addition, the lathefeeding mechanism 40 is capable of moving along the Y-axis direction,such that a uninterrupted machine is achieved, the finish of top portion301 of the metallic member 300 is enhanced, and the machining process istime saving. The scraping cutter 59 scrapes the corner 3033 along thetangent line, such that a finish is enhanced. The worktable 20 iscapable of rotating along the α axis and the β axis to convenientlyfacilitate the scraping cutter 59 machining of the metallic member 300.

While the present disclosure has been described with reference toparticular embodiments, the description is illustrative of thedisclosure and is not to be construed as limiting the disclosure.Therefore, various modifications can be made to the embodiments by thoseof ordinary skill in the art without departing from the true spirit andscope of the disclosure, as defined by the appended claims.

What is claimed is:
 1. A machining method for machining metallic memberusing lathing and scraping, comprising: (1) providing a machinecomprising a machine support, a worktable, a moving device, a lathefeeding mechanism, and a scraping feeding mechanism, wherein theworktable is positioned on the machine support; the moving device isslidably assembled to the machine support along a first direction andlocated above the worktable, the lathe feeding mechanism and thescraping feeding mechanism are slidably assembled to the moving devicealong a second direction perpendicular to the first direction, the lathefeeding mechanism comprises at least one feeding assembly and a lathetool connected to the at least one feeding assembly, the at least onefeeding assembly is configured for driving the lathe tool toreciprocally move along a third direction substantially perpendicular tothe first and second direction, the scraping feeding mechanism comprisesa scraping cutter and is configured for driving the scraping cutter tomove along the third direction; (2) positioning a metallic member on theworktable, the metallic member comprising a top portion and a peripheralsidewall extending from a peripheral edge of the top portion, theperipheral sidewall comprising an end edge away from the top portion;(3) moving the lathe tool by the moving device to resist the top portionof the metallic member (4) applying the worktable to rotate with themetallic member along a first axis along an axis parallel to the thirddirection; (5) controlling the lathe tool to move backwards and forwardstoward the metallic member to machine the top portion of the metallicmember circumferentially; (6) moving the lathe tool by the moving devicealong a predetermined path relative to the worktable to machine curvedsurfaces of the top portion of the metallic member; (7) holding themetallic member to stop rotate, and moving the lathe tool away from themetallic member; (8) driving the scraping cutter by the moving device tocontact the peripheral sidewall of the metallic member; and (9) applyingthe worktable to rotate the metallic member along an axis parallel tothe third direction, moving the scraping cutter along a predeterminedpath to scrap the peripheral sidewall of the metallic member,simultaneously controlling a feed of the scraping cutter relative to themetallic member.
 2. The method of claim 1, wherein in step (9), theworktable rotates the metallic member along an axis parallel to thethird direction, the moving device drives scraping feeding mechanism tomove cooperatively, thereby enabling the scraping cutter to contact theperipheral sidewall continuously during scraping.
 3. The method of claim1, wherein the scraping feeding mechanism further comprises a rotatabledriving member configured for driving the scraping cutter to rotatealong an axis parallel to the third direction, the peripheral sidewallof the metallic member comprises a plurality of side surfaces arrangedin order and adjacent two of the plurality of side surfaces areconnected by a corner, step (9) further comprises when the scrapingcutter arrives at the corner, the worktable rotates the metallic memberalong an axis parallel to the third direction, the rotatable drivingmember drives the scraping cutter to scrap the corner cooperatively,then the worktable rotates the metallic member along the axis parallelto the third direction until the scraping cutter arrives at a sidesurface adjacent to the side surface that has been scraped, and followedby repeating the machining steps on the adjacent side surface.
 4. Themethod of claim 3, wherein the scraping cutter scraping the corner, theworktable rotates the metallic member along the axis parallel to thethird direction, the rotatable driving member rotates the scrapingcutter to enable the scraping cutter to scrape the corner along atangent line of an outer surface of the corner.
 5. The method of claim3, wherein the lathe feeding mechanism further comprises a slidingsaddle and mounting seat fittingly assembled to the sliding saddle, thesliding saddle is slidably connected to the moving device along thesecond direction, the feeding assembly is received in the mounting seat,and the lathe tool is slidably mounted on the mounting seat, thescraping feeding mechanism is slidably mounted on the sliding saddlealong the third direction and the scraping feeding mechanism is adjacentto the mounting seat.
 6. The method of claim 5, wherein the scrapingfeeding mechanism further comprises a linear driving assembly and alinking board, the linear driving assembly comprises a driving member, ascrew leading rod, and a nut, the driving member is mounted on thesliding saddle, the sliding saddle comprises a mounting block, the screwleading rod rotatably interconnects the driving member and the mountingblock, the nut is sleeved on and engages with the screw leading rod, thelinking board is fixed to the nut and slidably engages with the slidingsaddle, the rotatable driving member is mounted on the linking board. 7.The method of claim 6, wherein the sliding saddle comprises two sets ofguiding rails along the third direction, the linking board is slidablyassembled to each of the two sets of guiding rails.
 8. The method ofclaim 1, wherein in step (8), when the scraping feeding mechanismarrives at the peripheral sidewall, the scraping feeding mechanismdrives the scraping cutter to slide along the third direction to enablethe scraping cutter to resist the peripheral sidewall.
 9. The method ofclaim 5, wherein the lathe feeding mechanism further comprises a toolholder, the mounting seat comprises two separate guiding portions alongthe third direction, the tool holder is slidably assembled to the twoseparate guiding portions, the lathe tool is assembled to the toolholder.
 10. A method for machining metallic member using lathing andscraping, comprising: (1) providing a machine comprising a machinesupport, a worktable, a moving device, a lathe feeding mechanism, and ascraping feeding mechanism, wherein the worktable is positioned on themachine support; the moving device is slidably assembled to the machinesupport along a first direction and located above the worktable, thelathe feeding mechanism and the scraping feeding mechanism are slidablyassembled to the moving device along a second direction perpendicular tothe first direction, the lathe feeding mechanism comprises at least onefeeding assembly and a lathe tool connected to the at least one feedingassembly, the at least one feeding assembly is configured for drivingthe lathe tool to reciprocally move along a third directionsubstantially perpendicular to the first and second direction, thescraping feeding mechanism comprises a scraping cutter and is configuredfor driving the scraping cutter to move along the third direction; (2)positioning a metallic member on the worktable, the metallic membercomprising a top portion and a peripheral sidewall extending from aperipheral edge of the top portion, the peripheral sidewall comprisingan end edge away from the top portion; (3) driving the scraping cutterby the moving device to contact the peripheral sidewall of the metallicmember; (4) applying the worktable to rotate the metallic member alongan axis parallel to the third direction, moving the scraping cutteralong a predetermined path to scrap the peripheral sidewall of themetallic member, simultaneously controlling a feed of the scrapingcutter relative to the metallic member; (5) holding the worktable tostop rotating, stopping the scraping cutter (6) moving the lathe tool bythe moving device to resist the top portion of the metallic member (7)applying the worktable to rotate with the metallic member along a firstaxis parallel to the third direction; (8) controlling the lathe tool tomove backwards and forwards toward the metallic member to machine thetop portion of the metallic member circumferentially; and (9) moving thelathe tool by the moving device along a predetermined path relative tothe worktable to machine curved surfaces of the top portion of themetallic member.
 11. The method of claim 10, wherein in step (4), theworktable rotates the metallic member along an axis parallel to thethird direction, the moving device drives scraping feeding mechanism tomove cooperatively, thereby enabling the scraping cutter to contact theperipheral sidewall continuously during scraping.
 12. The method ofclaim 10, wherein the scraping feeding mechanism further comprises arotatable driving member configured for driving the scraping cutter torotate along an axis parallel to the third direction, the peripheralsidewall of the metallic member comprises a plurality of side surfacesarranged in order and adjacent two of the plurality of side surfaces areconnected by a corner, step (4) further comprises when the scrapingcutter arrives at the corner, the worktable rotates the metallic memberalong an axis parallel to the third direction, the rotatable drivingmember drives the scraping cutter to scrap the corner cooperatively,then the worktable rotates the metallic member along the axis parallelto the third direction until the scraping cutter arrives at a sidesurface adjacent to the side surface that has been scraped, and followedby repeating the machining steps on the adjacent side surface.
 13. Themethod of claim 12, wherein the scraping cutter scraping the corner, theworktable rotates the metallic member along the axis parallel to thethird direction, the rotatable driving member rotates the scrapingcutter to enable the scraping cutter to scrape the corner along atangent line of an outer surface of the corner.
 14. The method of claim12, wherein the lathe feeding mechanism further comprises a slidingsaddle and mounting seat fittingly assembled to the sliding saddle, thesliding saddle is slidably connected to the moving device along thesecond direction, the feeding assembly is received in the mounting seat,and the lathe tool is slidably mounted on the mounting seat, thescraping feeding mechanism is slidably mounted on the sliding saddlealong the third direction and the scraping feeding mechanism is adjacentto the mounting seat.
 15. The method of claim 14, wherein the scrapingfeeding mechanism further comprises a linear driving assembly and alinking board, the linear driving assembly comprises a driving member, ascrew leading rod, and a nut, the driving member is mounted on thesliding saddle, the sliding saddle comprises a mounting block, the screwleading rod rotatably interconnects the driving member and the mountingblock, the nut is sleeved on and engages with the screw leading rod, thelinking board is fixed to the nut and slidably engages with the slidingsaddle, the rotatable driving member is mounted on the linking board.16. The method of claim 15, wherein the sliding saddle comprises twosets of guiding rails along the third direction, the linking board isslidably assembled to each of the two sets of guiding rails.
 17. Themethod of claim 10, wherein in step (3), when the scraping feedingmechanism arrives at the peripheral sidewall, the scraping feedingmechanism drives the scraping cutter to slide along the third directionto enable the scraping cutter to resist the peripheral sidewall.
 18. Thescraping method of claim 14, wherein the lathe feeding mechanism furthercomprises a tool holder, the mounting seat comprises two separateguiding portions along the third direction, the tool holder is slidablyassembled to the two separate guiding portions, the lathe tool isassembled to the tool holder.